1. (a.) Not dissoluble; not capable of being dissolved, melted, or liquefied; insoluble; as few substances are indissoluble by heat, but many are indissoluble in water.

2. (a.) Incapable of being rightfully broken or dissolved; perpetually binding or obligatory; firm; stable, as, an indissoluble league or covenant.

accordant adhering affirmative agglutinate agreeable agreeing answerable articulate at one clean-cut clear clear as crystal clear as day clear-cut cleaving clinging coexistent coexisting cohering cohesive coincident coinciding commensurate compatible comprehensible concordant concurring conformable congenial congruent congruous connected consentaneous consentient consistent consonant cooperating cooperative correspondent corresponding crisp crystal-clear crystalline defined definite direct distinct en rapport equivalent explicit express harmonious holding together impartible in accord in agreement in rapport in sync in synchronization inaccordance indiscerptible indissoluble indissolvable indivisible infrangible infusible inharmony inseparable insoluble intelligible like-minded limpid logical loud and clear lucid luminous of a piece of like mind of one mind on all fours orderly organized pellucid perspicuous plain positive proportionate rational reasonable reconcilable self-consistent sensible simple sticking straightforward stuck symbiotic synchronized synchronous translucent transparent transpicuous unambiguous unanimous unconfused understandable undividable unequivocal unified uniform unisonant unisonous univocal unmistakable well-defined well-ordered